Leave this to the lawyers and have your borrow pay legal fee

There are specifics on the lease about who pays what and when and also late fees etc.

You can save on interest, loan fees, etc.  

When we sell them, I get a small percentage of the fee from our service.

Got shut off and cost me $1200,00 to pay the bill and fees to turn it back on.

If you believe that things are as they always will be, (first you should look at the past and see if that is a reasonable assessment of what the future brings) then taking into account: limitations on what you can invest in, your Solo 401(k) "projected" growth, fees & hidden fees, you can't co-mingle funds, you have to carefully manage the process, future tax increases, tax law changes, a national debt that is north of $22 Trillion dollars, unfunded liabilities and and of course inflation, along with possible "bail ins" then you are well equipped to decide if that is a good choice for your style of investing.However, If you are an "opportunistic investor" . . . . you jump at the opportunity when it arises, then you run into some conflicts.

@Logan Fast you can always go to a portfolio lender- just be prepared for higher fees and interest.

Is there any other "hidden fees" other than what they show based on the estimate of your home?

Not only do you have their doctor bills to potentially worry about, but also the cost of legal fees if they decide to sue you.

For example: Section 11 (Utilities) states that tenant will pay all connection fees, etc.